3.5ct Tanzanite (Emerald, 10.34×7.66mm, Blue) vs 2ct Diamond (Round, 8.19×8.19mm, White)
Quick summary: When looked from above (face-up position), 3.5ct Tanzanite (10.34×7.66mm, emerald cut) appears 40% larger than 2ct Diamond (8.19×8.19mm, round cut). See below how they compare side-by-side on a ring and finger.
| 3.5ct Tanzanite (emerald cut) |
vs
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2ct Diamond (round cut) |
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blue |
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| 10.34×7.66 mm | 8.19×8.19 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
3.5ct Tanzanite Emerald (10.34×7.66mm, Blue)
and
2ct Diamond Round (8.19×8.19mm, White)
as they would appear on a ring and finger.
Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Face-up Size
All things being equal, Diamond will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.52 vs. 3.35 - this means it's "heavier" compared to Tanzanite of the same size). Face-up size also depends heavily on the proportions of the cut.
Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.
Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.
| 3.5 Ct Tanzanite (Emerald) | 2 Ct Diamond (Round) | |
| 10.34×7.66 mm | vs | 8.19×8.19 mm |
| 73.66 mm² | 52.68 mm² |
| 3.5ct Tanzanite Emerald (10.34×7.66mm) | |
| 2ct Diamond Round (8.19×8.19mm) | |
| Difference: 40% (20.98 mm²) |
3.5ct Tanzanite (Emerald, 10.34×7.66mm) has approx. 40% more face-up area than 2ct Diamond (Round, 8.19×8.19mm).
Popular comparisons:
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 0.4ct Diamond (Cushion, Purple, 4.29 x 4.29)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 0.4ct Diamond (Cushion, Light Violet, 4.29 x 4.29)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 0.8ct Diamond (Round, White, 6.03 x 6.03)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 3.75ct Diamond (Cushion, White, 9.05 x 9.05)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 2.7ct Morganite (Trillion, Light Purple, 11.16 x 11.16)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 3.75ct Diamond (Cushion, White, 10.5 x 9.05)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 3.75ct Diamond (Cushion, White, 10.5 x 8)
- 3.5ct Tanzanite (Emerald, Blue, 10.34 x 7.66) vs. 3.75ct Diamond (Cushion, White, 10.5 x 8.5)